Microtubular cellulose-derived kapok fibre as a solid electron donor for boosting photocatalytic H2O2 production over C-doped g-C3N4 hybrid complexation

Cellulose continues to play an important and emerging role in photocatalysis, and its favourable properties, such as electron-rich hydroxyl groups, could enhance the performance of photocatalytic reactions. For the first time, this study exploited the kapok fibre with microtubular structure (t-KF) a...

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Published in:Carbohydrate polymers 2023-10, Vol.317, p.121096-121096, Article 121096
Main Authors: Hasnan, Nur Shamimie Nadzwin, Mohamed, Mohamad Azuwa, Nordin, Nurul Atikah, Wan Ishak, Wan Nor Roslam, Kassim, Mohammad B.
Format: Article
Language:English
Subjects:
Cellulose
Crosslinking
G-C3N4
Hydrogen peroxide production
Ligand-to-metal-charge-transfer
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Summary:Cellulose continues to play an important and emerging role in photocatalysis, and its favourable properties, such as electron-rich hydroxyl groups, could enhance the performance of photocatalytic reactions. For the first time, this study exploited the kapok fibre with microtubular structure (t-KF) as a solid electron donor to enhance the photocatalytic activity of C-doped g-C3N4 (CCN) via ligand-to-metal-charge-transfer (LMCT) to improve hydrogen peroxide (H2O2) production performance. As confirmed by various characterisation techniques, the hybrid complex consisting of CCN grafted on t-KF was successfully developed in the presence of succinic acid (SA) as a cross-linker via a simple hydrothermal approach. The complexation formation between CCN and t-KF results in the CCN-SA/t-KF sample displaying a higher photocatalytic activity than pristine g-C3N4 to produce H2O2 under visible light irradiation. The enhanced physicochemical and optoelectronic properties of CCN-SA/t-KF imply that the LMCT mechanism is crucial in improving photocatalytic activity. This study promotes utilising the unique t-KF material's properties to develop a low-cost and high-performance cellulose-based LMCT photocatalyst. [Display omitted]
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2023.121096